Test ID:	1.3.6.1.4.1.25623.1.0.893205
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-3205-1)
Summary:	The remote host is missing an update for the Debian 'inetutils' package(s) announced via the DLA-3205-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'inetutils' package(s) announced via the DLA-3205-1 advisory. Vulnerability Insight: Several security vulnerabilities were discovered in inetutils, a collection of common network programs. CVE-2019-0053 inetutils' telnet client doesn't sufficiently validate environment variables, which can lead to stack-based buffer overflows. This issue is limited to local exploitation from restricted shells. CVE-2021-40491 inetutils' ftp client before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. A malicious server can exploit this flaw to reach services in the client's private network. (This is similar to curl's CVE-2020-8284.) CVE-2022-39028 inetutils's telnet server through 2.3 has a NULL pointer dereference which a client can trigger by sending 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval, the telnet service would become unavailable after inetd logs a 'telnet/tcp server failing (looping), service terminated' error. For Debian 10 buster, these problems have been fixed in version 2:1.9.4-7+deb10u2. We recommend that you upgrade your inetutils packages. For the detailed security status of inetutils please refer to its security tracker page at: [link moved to references] Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'inetutils' package(s) on Debian 10. Solution: Please install the updated package(s). CVSS Score: 4.6 CVSS Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2019-0053 Bugtraq: 20190724 FreeBSD Security Advisory FreeBSD-SA-19:12.telnet (Google Search) https://seclists.org/bugtraq/2019/Jul/45 FreeBSD Security Advisory: FreeBSD-SA-19:12 https://security.FreeBSD.org/advisories/FreeBSD-SA-19:12.telnet.asc http://packetstormsecurity.com/files/153746/FreeBSD-Security-Advisory-FreeBSD-SA-19-12.telnet.html https://lists.debian.org/debian-lts-announce/2023/10/msg00013.html https://www.exploit-db.com/exploits/45982 https://lists.debian.org/debian-lts-announce/2022/11/msg00033.html Common Vulnerability Exposure (CVE) ID: CVE-2021-40491 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993476 https://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=58cb043b190fd04effdaea7c9403416b436e50dd https://lists.gnu.org/archive/html/bug-inetutils/2021-06/msg00002.html Common Vulnerability Exposure (CVE) ID: CVE-2022-39028 https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=113da8021710d871c7dd72d2a4d5615d42d64289 https://lists.gnu.org/archive/html/bug-inetutils/2022-08/msg00002.html https://pierrekim.github.io/blog/2022-08-24-2-byte-dos-freebsd-netbsd-telnetd-netkit-telnetd-inetutils-telnetd-kerberos-telnetd.html
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